Erick Serejo
Mobile and front-end developer with 5+ years of experience delivering high-impact applications across financial, renewable energy, and healthcare domains.
About
Mobile and front-end developer with 5+ years of experience delivering high-impact applications across financial, renewable energy, and healthcare domains. Specialized in Flutter and Vue.js, with strong expertise in Node.js/TypeScript, scalable architecture, internationalization, CI/CD, and automated testing.
I build secure, modular products using clean architecture and state management (Cubit/MobX/GetX), and I collaborate in Agile environments to ship reliable releases at scale, improving performance, reducing regressions, and accelerating market expansion through i18n and optimized delivery pipelines.
- 7 years' experience
- Joined January 2025
Industry experience
- Financial Services
- Healthcare
- Energy & Utilities
- Software & Internet
Work experience· 5 roles
Architected and developed a payment SDK from scratch for a major insurance company, implementing RSA encryption and tokenization to securely handle credit card data across multiple payment gateways. Designed the solution using Clean Architecture and Cubit state management. Optimized 12 API endpoints through strategic parallel/sequential call orchestration to complete the process in under 10 seconds, improving end-to-end payment performance and reliability.
Developed payment flows in Flutter for a financial institution using Cubit and Clean Architecture to ensure modularity and scalability, reducing regressions by 32%. Contributed to the event creation flow in the Track&Field application, resolving critical bugs and decreasing crash reports by 40%, supporting on-time releases for 500k+ active users. Led internationalization of a white-label financial app by implementing language modularization, reducing localization effort for new markets by 60% and enabling expansion to 3+ countries.
Developed mobile features with Flutter using MobX and GetX, contributing to a 25% sales increase during the app launch period. Implemented web systems in Vue.js using Vuex and Pinia, and led migration from Vue 2 to Vue 3, resulting in a 40% improvement in production deployment performance. Introduced unit tests (Jest) and CI/CD pipelines to improve quality and release cadence.
Education
Certifications and awards
- Delivery of national-level cargo transportation and tracking systems. - Delivered 2 Flutter applications: - One developed using Mobx with the MVVM architectural pattern. - Another developed using Getx for state management.
- Developed mobile systems features using Flutter with Mobx and Getx for state management. - Developed web systems using Vue 2 and Vue 3, integrating Vuex and Pinia for state management. - Led the migration of systems from Vue 2 to Vue 3, transitioning from a PHP monolith to an independent front-end system - Utilized Vuetify and Bootstrap Vue as UI frameworks. - Introduced Jest unit tests for comprehensive system coverage. - Responsible for implementing unit tests and the company's CI/CD. - Facilitated the teaching and empowerment of other team developers through mentorship and training sessions.
- Participation in the credit flow in a financial application using Cubit and Clean Architecture. - Participation in an event system using Clean Architecture and Mobx.
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